Question 1

Why do I need to fertilize my Cucumber?

Accepted Answer

Naturally every type of plant requires nutrients to grow properly, but when we grow Cucumber for its fruit, the harvest will be best if the soil is supplemented to provide more of what plants need. Each of the main macronutrients provides something different to plants. Phosphorus is the key nutrient that promotes the formation of flowers and fruit. Of course, a plant cannot produce flowers and fruit without a proper root system and healthy leaves to absorb sunlight, so the nutrients that support those parts of the plant are also necessary. Without enough of the necessary macronutrients, plants lack vitality, grow more slowly, and may wilt. Plants have to devote a lot of energy to flowering and fruiting, so if they are lacking in these main components that support their processes the resulting fruits will show that deficiency as well.

Question 2

When is the best time to fertilize my Cucumber?

Accepted Answer

Cucumber is a summer crop, and needs to be planted in the spring to produce fruits during the summer months. Check the specific variety to see when it should be planted. Cucumber requires rich, fertile soil to yield high quality produce. Before planting, mix a 2 inch layer of compost or well-rotted manure into the soil. These materials add nutrients to the soil that can help kick-start growth for your Cucumber, and also increase the drainage of the soil. Transplants can be fertilized immediately after planting, but seedlings should reach a height of 2 to 4 inches before being fertilized for the first time. For established plants, feed about every 3 to 4 weeks throughout the growing season, until the first frost or when the plant stops producing.

Check the specific fertilizer type as well as the variety of Cucumber to be sure that you are customizing your fertilization schedule to your situation. It is always better to fertilize less if you are not sure.

Question 3

When should I avoid fertilizing my Cucumber?

Accepted Answer

Avoid giving Cucumber a fertilizer with too much nitrogen, since this can lead to development of plenty of leaves but not many blooms or fruits. Look for fertilizer with a lower level of nitrogen compared to other nutrients. Don’t fertilize Cucumber when temperatures are high or when conditions are very dry. Doing so can cause the fertilizer to wash through the soil without being absorbed. Plants also have less ability to absorb nutrients during hot weather, which can allow the fertilizer to stay in the soil and prevent the plants from being able to take up water. This can be dangerous to plants during a drought or heatwave.

Question 4

What type of fertilizer does my Cucumber need?

Accepted Answer

The best way to know what kind of fertilizer your Cucumber needs is to first determine what is already plentiful in your soil and what might be lacking. The best way to understand this is to use a soil test to better understand your soil composition, although many people are able, through trial and error, to successfully grow Cucumber without doing a test. You can find a commercial fertilizer specifically for almost any variety of Cucumber, but it’s not necessary to purchase a different one for every vegetable you decide to grow. If you can determine their basic needs along with what is already available in your soil, you will be able to use the same fertilizer for many different plants. Many growers like to use a high-phosphorus fertilizer that supports flowers and fruits. High-phosphorus fertilizers are those that have an NPK ratio in which the middle number is highest, such as 8-32-16 or 10-30-10. That said, some people just use a balanced fertilizer such as 10-10-10 for all of their garden plants to keep things simple.

Question 5

What happens if I fertilize my Cucumber too much?

Accepted Answer

Over-fertilizing Cucumber can lead to root burn and even the death of the entire plant in extreme cases. More often, the plant will develop a lot of lush green foliage, but the flowering and fruiting will be reduced. With more leaves, there is also the danger of inviting more pests that feed on your Cucumber. It is possible to over-fertilize with both natural fertilizers or chemical fertilizers, although the latter is more common. Nitrogen is the most likely to cause problems but any nutrient in excess will cause similar problems. When using multiple types of fertilizer of soil amendment, make sure you understand everything that they will be introducing to your soil. If you add several different soil amendments that all contain the same nutrient, you could overdo it before you realize what has happened. Finally, it is important to avoid applying too much fertilizer as it can pollute groundwater. Unused nitrogen is not absorbed into the soil, so it can drain into nearby water sources and cause high concentrations of nitrates. High levels of nitrogen-nitrate are unhealthy for human and animal consumption, so it is very important to only use as much fertilizer as plants need.

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How do I fertilize my Cucumber?

More Questions About Cucumber

Why do I need to fertilize my Cucumber?

When is the best time to fertilize my Cucumber?

When should I avoid fertilizing my Cucumber?

What type of fertilizer does my Cucumber need?

What happens if I fertilize my Cucumber too much?